/*
  Copyright (c), 2001-2022, Shenshu Tech. Co., Ltd.
 */

#ifndef OT_I2C_H
#define OT_I2C_H

#include "ot_type.h"

#ifdef __cplusplus
#if __cplusplus
extern "C"
{
#endif
#endif /* End of #ifdef __cplusplus */

/* /dev/i2c-X ioctl commands.  The ioctl's parameter is always an
 * unsigned long, except for:
 *      - I2C_FUNCS, takes pointer to an unsigned long
 *      - I2C_RDWR, takes pointer to struct i2c_rdwr_ioctl_data
 *      - I2C_SMBUS, takes pointer to struct i2c_smbus_ioctl_data
 * */
#define OT_I2C_RETRIES                                                                      \
    0x0701                    /* number of times a device address should be polled when not \
                                 acknowledging */
#define OT_I2C_TIMEOUT 0x0702 /* set timeout in units of 10 ms */

/* NOTE: Slave address is 7 or 10 bits, but 10-bit addresses
 * are NOT supported! (due to code brokenness)
 * */
#define OT_I2C_SLAVE 0x0703 /* Use this slave address */
#define OT_I2C_SLAVE_FORCE                                                                        \
    0x0706                   /* Use this slave address, even if it is already in use by a driver! \
                              */
#define OT_I2C_TENBIT 0x0704 /* 0 for 7 bit addrs, != 0 for 10 bit */

#define OT_I2C_FUNCS 0x0705 /* Get the adapter functionality mask */

#define OT_I2C_RDWR 0x0707 /* Combined R/W transfer (one STOP only) */

#define OT_I2C_PEC 0x0708        /* != 0 to use PEC with SMBus */
#define OT_I2C_SMBUS 0x0720      /* SMBus transfer */
#define OT_I2C_16BIT_REG 0x0709  /* 16BIT REG WIDTH */
#define OT_I2C_16BIT_DATA 0x070a /* 16BIT DATA WIDTH */

    typedef struct
    {
        td_u8 dev_addr;
        td_u32 reg_addr;
        td_u32 addr_byte_num;
        td_u32 data;
        td_u32 data_byte_num;
    } ot_i2c_data;

#ifdef __cplusplus
#if __cplusplus
}
#endif
#endif /* End of #ifdef __cplusplus */

#endif /* OT_I2C_H */
